OFFSET
1,1
COMMENTS
Incidentally all terms are multiples of 3.
EXAMPLE
3 = 1+2*1^2.
27 = 3+2*3^2 = 5^2+2*1^2.
99 = 1+2*7^2 = 7^2+2*5^2 = 9^2+2*3^2.
CROSSREFS
KEYWORD
nonn
AUTHOR
Zak Seidov, Nov 29 2011
STATUS
approved